Molding-machine.



Patented Sept. 2, 1913.

2 SHEETS-SHEET 1.

H. H. HOUSE. MOLDING MACHINE. APPLICATION FILED AUG. 31, 1912. 1,072,229.

INVENTOI? ATTORNEYS COLUMBIA ILANOGRM" CO-,WASHINDTON, n. c.

WIT NESSES H. H. HOOSE. MOLDING MACHINE.

APPLIUATION TILED AUG. 31, 1912. 1,072,229.

2 SHBET8S BET 2.

cnunuu PMNOGIIA'" CIOQVIMNINDTON, D. C.

Patented Sept. 2, 1913.

HERBERT HARRIS HOUSE, OF PORT CHESTER, NEW YORK.

MOLDING-MACHINE.

Specification of Letters Patent.

llatented Sept. 2, 1913.

Application filed August 31, 1912. Serial No. 718,059.

To all whom it may concern Be it known that I, Hanmnrr H. I'loosn, a citizen of the United States, and a resident; of Port Chester, in the county of \Vestchester and State of New York, have invented a new and Improved lvlolding-Machine, oi which the following is a full, clear, and exact description.

This invention relates to molding niachines, and particularly to an improvement in the art wherein the engagement betweenroll, and also to thoroughly remove any loose sand from the mold after the same has been passed thereunder.

Further objects and advantages of the invention are not specifically set forth at the present time but will appear as the description proceeds.

te'ference is to be had to the accompanying drawings forming a part of this specification, in which like characters of reference indicate corresponding parts in all. the views, and in which Figure 1 is a side view of the molding ma chine; Fig. 2 is a vertical sectional view showing the roll having a portion thereof in engagement with the sand used in hirming the mold; Fig. 3 is a vertical sectional View through the roll and the mold; Fig. 41: is a plan view of the machine; while l ig. 5 is a sectional view on the line 5--5 of Fig. 4-.

The machine comprises any suitable bed 1 supporting a longitudinally movable table 2 which has a rack 3 on its under side, there being rollers l between the table and. the bed in order to provide for smooth running. The table is adapted to support any suitable flask 5 containing a quantity of sand (3, and also patterns from which the molds are to be made; it is to be noted that opposite sides of the bed are provided with standards 7 extending above the table, the flask and the sand. Extending transversely of the bed is a shaft 8 having a driving pulley 9 at one end thereof and a gear 10 around which a chain ll passes, this chain being used in prsitively turning or driving the roll. 12 to be presently described. Also mounted on this shaft 8 is a pinion i1) meshing with a gear 1%]; suitably supported by the bed, which gear meshes with the said rack 3 on the under side oil the table 2, whereby as the shaft 8 is turned the table will be moved 'lorwardly along the said bed. l lxtcnding longitudinally of the said standards 7 are screws 15, the upper ends of which are provided with bevel gears 16, the lower threaded ends of the screws engaging in blocks 17 carried by the bearings '18 which support the said roll 12 by means ol' the shaft 19. .llxtending transvcrscly o'lf' the standards is a shaft 20 having squared ends ill. by which it may be conveniently turned, the sha'l't being lrovide('l with a plurality oi? bevel gear." 22 meshing with the abotux-mentioned gears 16, the purpose of which is to raise and lower the roll 12 relatively to the table 2.

\Vhile the particular form of the roll and the bearings there for may be widely changed it is to be noted that one end ot the sha'l't 1.) on which the roll is mounted is provided with a gear 2?, around which ti 2 above-mentioned. chain 'l'l passes, so that this roll is positively driven, and being driven lrom the same source of power as the table .2, it will be apparent that a timed relation exists between the travel ol these parts. The roll shown in the drawings is prcilerably a hob low cylimlrir-al body luiving a. number of projections 2=|- on its outer side, which projections arc adal itcd to come into lorciblo engagemcnt' with the sand (3 contained in the flash 5, when the machine is operating, at-

cerlain portions thcreo't, tlmrcby bringing greater pressure to hear at those portions and compressing the sand, as is indicated at (3 i Fig. 2; these compressed portions may be located where desired, in which event the particular form of the roll '12 will vary, depending on the particular form oi? molding tobe provided. in any event the roll is positively driven as mentiontul, and pressure brought to bear is not due merely to the weight; oi. the roll, but is due to the fact that the roll is held in the bearing 18 immovably, and that it the parts are to coin tinue their relative movement such compression at the sand must follow.

The particular :lortn oi the various elefeatures as size and shape of the various ments described is immaterial as far as the performance of the inventive idea 1s concerned. It is obvious, of course, that such parts may differ greatly in different machines, all of which embody the same inventive idea.

In order to insure the proper amount of sand in each flask, and not any more than such amount, I propose to use a suitable device which 1 term a scraper, operating in advance of the roll 12, and the purpose of which is to remove all sand save a certain amount. and 4, it will be noted that this scraper is essentially a rectangular element 30, the opening in which is sufhcicnt to pass around the roll 12, the sides of the body on opposite sides of the roll performing the'scraping function as indicated in Fig. 1. The ends of this element are preferably provided with suitable stub'shafts 31 mounted in suitable bearings 32,'which bearings are carried by oppositely extending bolts 33 carried by the standards 7, so that movement of the bolts upwardly or downwardly will result in raisin g or lowering this scraper relatively to the bed, and providing for the removal of more or less surplus sand. As shown in Fig. 1, the left side of the scraper is engaging the sand 6 in the flask 5 at a certain elevation, the sand extending above this elevation being removed or prevented from passing beneath the roll 12, as will be apparent; the opposite side of the scraper lies closely ad- Referring particularly to Figs. 1'

such a scraper permits the sand to be indiscriminately thrown into the flask before the same is placed on the bed preparatory to passing beneath the roll, such operation materially reducing the cost. of forming the mold. It is, of course, obvious that the scraper while shown adjustable longitudinally of the standards 7, may also be adjusted in order to extend at various angles from the said standards to vary the amount of sand removed from the flask just entering under the roll.

Having thus described my invention, what Iclaim as new and desire to secure by Letters Patent is:

The combination of a table adapted to support a flask containing sand, a roll positioned above the flask, and a scraper com prising a rectangular element having portions positioned on opposite sides of the roll, the said portions being adapted to engage and remove some of the sand in the flask both before and after the flask passes beneath the roll.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERBERT HARRIS HOOSE. lVitnesses VVILLIAM A. DAVIDSON, Gno. C. Booonn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

7 Washington, D. G. 

